Evidence map›Paper›PMID 32473595›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2020

Lowered endogenous mu-opioid receptor availability in subclinical depression and anxiety.

Lauri Nummenmaa, Tomi Karjalainen, Janne Isojärvi, Tatu Kantonen, Jouni Tuisku, Valtteri Kaasinen, Juho Joutsa, Pirjo Nuutila, Kari Kalliokoski, Jussi Hirvonen and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
7.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Is the antidepressant efficacy of ketamine and esketamine mediated via opioid mechanisms?European psychiatry : the journal of the Association of European Psychiatrists · 2026
    Pooled it
  2. Article
  3. Article
  4. Trajectories of late-life depression: insights from molecular imaging.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  5. Article
  6. Article
  7. New Antidepressant Development in the Treatment of Depression.Advances in experimental medicine and biology · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Childhood family environment and μ-opioid receptor availability in vivo in adulthood.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  17. VTA µ-Opioidergic Neurons Facilitate Low Sociability in Protracted Opioid Abstinence.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  18. Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 1 institution in 1 country.

Lauri NummenmaaTurku PET Centre, University of Turku, Turku, Finland. latanu@utu.fi.ORCID http://orcid.org/0000-0002-2497-9757
Tomi KarjalainenTurku PET Centre, University of Turku, Turku, Finland.
Janne IsojärviTurku PET Centre, University of Turku, Turku, Finland.ORCID http://orcid.org/0000-0003-0397-7629
Tatu KantonenTurku PET Centre, University of Turku, Turku, Finland.ORCID http://orcid.org/0000-0002-2336-0426
Jouni TuiskuTurku PET Centre, University of Turku, Turku, Finland.
Valtteri KaasinenTurku PET Centre, University of Turku, Turku, Finland.ORCID http://orcid.org/0000-0002-3446-7093
Juho JoutsaTurku PET Centre, University of Turku, Turku, Finland.
Pirjo NuutilaTurku PET Centre, University of Turku, Turku, Finland.
Kari KalliokoskiTurku PET Centre, University of Turku, Turku, Finland.
Jussi HirvonenTurku PET Centre, University of Turku, Turku, Finland.
Jarmo HietalaTurku University Hospital University of Turku, Turku, Finland.ORCID http://orcid.org/0000-0002-3179-6780
Juha RinneTurku PET Centre, University of Turku, Turku, Finland.
University of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major depressive disorder is associated with lowered mood, anxiety, anhedonia, sleep problems, and cognitive impairments. Many of these functions are regulated by μ-opioid receptor (MOR) system. Preclinical, in vivo, and post-mortem studies have however yielded inconclusive results regarding the role of the MOR in depression and anxiety. Moreover, it is not known whether alterations in MOR are already present in subclinical depression and anxiety. In a large-scale retrospective cross-sectional study we pooled data from 135 (113 males and 22 females) healthy subjects whose brain's MOR availability was measured with positron emission tomography (PET) using an agonist radioligand [

Indexed as

Major Depressive DisorderAnxietyAnxiety DisordersBrainCross-Sectional StudiesDepressionFemaleHumansMalePositron-Emission TomographyReceptors, Opioid, muRetrospective StudiesReceptors, Opioid, mu

Identifiers

PMID32473595
PMCPMC7608336
OpenAlexW3031783219

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.